What JSON structure can be converted to CSV?

CSV conversion works best with flat JSON arrays of objects where each object has the same keys. Example: [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Deeply nested structures need manual handling.

What happens with nested JSON objects?

Nested objects can either be stringified (the entire nested object appears as a JSON string in one cell) or flattened (nested keys become column headers like 'address.city'). The tool provides both options.

Can I open the CSV directly in Excel?

Yes. Download the .csv file and open it in Excel or Google Sheets. If columns aren't splitting correctly, check the delimiter setting — European regions often use semicolons instead of commas.

What if my JSON objects have different keys?

The converter unions all unique keys across all objects as column headers. Objects missing certain keys will have empty cells in those columns in the CSV output.

Is there a size limit for JSON input?

The tool handles JSON files up to approximately 5MB. For very large datasets, consider using command-line tools or server-side scripts for better performance.

Converters

Popular

Free

JSON to CSV Converter

Convert JSON arrays to CSV format with auto-detected headers. Download the CSV file directly.

JSON Input (array of objects)

What is JSON to CSV Converter?

The JSON to CSV Converter transforms JSON data (arrays of objects) into comma-separated value (CSV) format — compatible with Excel, Google Sheets, and any data analysis tool. It automatically detects JSON structure, maps object keys to column headers, and formats each object as a CSV row.

JSON is the standard format for API responses and data exchange between systems. CSV is the standard format for spreadsheets and data analysis tools. Converting between them is a frequent data workflow task — this tool handles it instantly without requiring code or scripts.

Why Use JSON to CSV Converter?

API data arrives as JSON; business users need CSV for spreadsheets. Developers receive JSON exports they need to analyse in Excel. This converter bridges the gap between developer-friendly JSON and business-friendly CSV in seconds, without writing data transformation scripts.

Key Features of JSON to CSV Converter

✓Converts JSON arrays to CSV with auto-detected headers
✓Handles nested objects (flattens or stringifies)
✓Handles null and undefined values gracefully
✓Custom delimiter option (comma, semicolon, tab)
✓Download output as a .csv file

How to Use JSON to CSV Converter

1
Paste your JSON
Enter or paste the JSON array you want to convert.
2
Convert
Click 'Convert to CSV' to transform the data.
3
Review the CSV output
Check that column headers and row data are correct.
4
Choose delimiter
Select comma, semicolon, or tab as delimiter for your regional spreadsheet format.
5
Download or copy
Download as .csv or copy the output to paste into Excel or Google Sheets.